From 0b71cea29fc29bbd8e9dd9c641fee6bd75f68274 Mon Sep 17 00:00:00 2001
From: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Date: Fri, 12 May 2017 13:20:15 +0200
Subject: [PATCH] drm/i915/gen9: Reintroduce WaEnableYV12BugFixInHalfSliceChicken7
Git-commit: 0b71cea29fc29bbd8e9dd9c641fee6bd75f68274
Patch-mainline: v4.13-rc1
References: FATE#322643 bsc#1055900
This basically reverts commit 465418c6064c
("drm/i915/gen9: Remove WaEnableYV12BugFixInHalfSliceChicken7")
with small addition - marking it as affecting GLK as well.
It was incorrectly considered fixed in production steppings.
References: HSD#2126385, HSD#2131381, HSDES#1504433555, BSID#0764
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Jeff McGee <jeff.mcgee@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
[mika: s/KBL/GLK on commit message]
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170512112015.19082-1-arkadiusz.hiler@intel.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/intel_engine_cs.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -851,8 +851,10 @@ static int gen9_init_workarounds(struct
*/
}
+ /* WaEnableYV12BugFixInHalfSliceChicken7:skl,bxt,kbl,glk */
/* WaEnableSamplerGPGPUPreemptionSupport:skl,bxt,kbl */
WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7,
+ GEN9_ENABLE_YV12_BUGFIX |
GEN9_ENABLE_GPGPU_PREEMPTION);
/* Wa4x4STCOptimizationDisable:skl,bxt,kbl,glk */